Abstract
We proposed the optimized continuous-variable quantum key distribution protocol with self-reference and discrete modulation, which incorporates the advantages of both self-reference detection scenario and discrete modulation of quantum states. The impact of excess phase noise resulting from the self-reference intradyne detection on the secret key rate has been evaluated. We have comprehensively analyzed the optimized protocol performance and compared it with the other three continuous-variable quantum key distribution protocols proposed so far and confirmed that the optimized protocol that we proposed enables the quantum key distribution over longer distances and immunity against the side-channel attack.
| Original language | English (US) |
|---|---|
| Article number | 8000408 |
| Journal | IEEE Journal of Quantum Electronics |
| Volume | 54 |
| Issue number | 5 |
| DOIs | |
| State | Published - Oct 2018 |
Keywords
- Quantum cryptography
- discrete modulation
- optical fiber communication
- quantum key distribution (QKD)
- self-reference detection
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering